The Senate has approved a one-week continuing resolution extension of government funding -- buying themselves seven days to come up with a grand deal on government funding and COVID-19 relief.

In a dramatic fashion, both Sens. Bernie Sanders, I-Vt., and Josh Hawley, R-Mo., indicated that next week, they must get a vote on their amendment to provide working class Americans with another round of $1,200 stimulus checks -- or they will block government funding, in effect, forcing a government shutdown.

-ABC News' Trish Turner and Allison Pecorin

The Senate voted to send the National Defense Authorization bill, the military's annual budget, to Trump's desk Friday afternoon by a veto-proof majority of 84-13.

While the bill received broad support from members on both sides of the aisle, it faced objections from each party's most off-center members. Progressive Democrats like Sen. Bernie Sanders and Sen. Jeff Merkley opposed the bill, as did conservative Republicans like Sen. Josh Hawley and Sen. Tom Cotton.

Trump has threatened as recently as Tuesday to veto the bill.

-ABC News' Trish Turner and Allison Pecorin

As the Trump campaign waits for smoke signals from the U.S. Supreme Court, it faced yet another courtroom defeat on Friday.

The Milwaukee County Circuit Court in Wisconsin has denied the Trump campaign's attempt to toss out 220,000 ballots it said should have been rejected following recounts in Dane and Milwaukee Counties. Judge Stephen Simanek noted the campaign made "no allegations of widespread fraud," nor did it submit any evidence that would support such claims.

The Trump campaign will now likely appeal the decision to the Wisconsin Supreme Court.

Since his Nov. 3 defeat, the president and his allies have mounted over 50 lawsuits in state and federal courts that have met with resounding and, at times, scathing defeats.

-ABC News' Alex Hosenball and Matthew Mosk

As the runoff elections for Georgia's two U.S. Senate seats that will decide which party controls the chamber enter their final weeks, Biden's presidential campaign is ramping up its investments to bolster the candidacies of Democrats Jon Ossoff and Rev. Raphael Warnock.

In coordination with the Democratic National Committee (DNC), the Biden campaign has spent roughly $5 million thus far in the Georgia runoffs and are paying for "approximately 50 staffers" to help with organizing, voter outreach and other efforts, according to a Biden campaign official. Around a dozen of the campaign's data analytics staffers are also helping.

The Biden campaign and the DNC also have raised nearly $10 million for both Ossoff and Warnock combined, and earlier this week launched a "Flip Georgia Fund" to aid their campaigns.

Biden himself will travel to Georgia on Tuesday to campaign for Ossoff and Warnock and will emphasize his commitment to helping candidates win up and down the ballot and build a broad coalition that will support his agenda to "build back better," according to a Biden campaign official.

-ABC News' John Verhovek

Trump and Biden hold dueling events on the pandemic response Tuesday with the president hosting a "vaccine summit" at the White House, just days before a Food and Drug Administration advisory committee holds a hearing on whether to authorize emergency use of a COVID-19 vaccine, while the president-elect is slated to formally roll out his health care picks who will take over handling the COVID-19 pandemic in 43 days.

At his event, Trump is slated to sign an executive order touting his mantra of "America First" that would prioritize Americans’ access to COVID-19 vaccines before the United States helps other countries. But the chief science adviser to "Operation Warp Speed," the U.S. government's initiative to expedite vaccine development which Trump is also expected to tout, said Tuesday morning he doesn't know about the vaccine-related executive order Trump is expected to sign.

"Frankly, I don't know and, frankly, I'm staying out of this. I can't comment," Dr. Moncef Slaoui told ABC News Chief Anchor George Stephanopoulos in an interview Tuesday on "Good Morning America,” when asked to explain the executive order.

The event comes as a senior administration official familiar with the matter confirmed reporting to ABC News that the Trump Administration passed when Pfizer offered in later summer to sell the U.S. more COVID-19 vaccine doses -- an approach which the White House has denied and Slaoui defended Tuesday. Representatives of Pfizer and Moderna -- the two drug companies seeking emergency-use authorization -- are not expected to attend the White House summit, nor is anyone from the Biden transition team.

Biden, meanwhile, is slated to introduce the health care team he will entrust with handling the pandemic California Attorney General Xavier Becerra as Health and Human Services secretary, the first Latino to hold the post if confirmed. Director of the National Institute of Allergy and Infectious Diseases Dr. Anthony Fauci, who is taking on the elevated role of chief medical adviser to Biden in the incoming administration, is expected to dial into Biden’s meeting, though not the one at the White House.

Biden and Vice President-elect Kamala Harris are also meeting Tuesday with several civil rights leaders including NAACP representatives to discuss policy issues around racial equity as well as diversity and representation on the incoming Cabinet. It comes after news leaked that Biden is expected to name retired four-star Army Gen. Lloyd Austin as his defense secretary, who would be the first African American in the post if confirmed, this week.

Tuesday is also the congressionally mandated "safe harbor" deadline -- the date, under federal law, by which the "final determination of any controversy or contest concerning the appointment" of electors "shall be conclusive” -- making it extremely difficult to dispute election results in the courts, where pro-Trump efforts have seen at least 39 defeats to date.